Nitrites

Sodium nitrite (2834101000) dominates trade under this heading and serves dual roles: as a curing agent and color fixative in processed meat products, and as an industrial chemical in dye synthesis, metal treatment, and pharmaceutical manufacturing. India and China are the leading foreign suppliers to the US market, with Germany also a significant source. Sodium nitrite destined for food-contact or food-additive use is subject to FDA oversight, and importers should ensure supplier documentation supports the intended application. The residual line (2834105000) captures other nitrite salts used in specialty industrial processes.